Long Rods: Difference between revisions

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| Materials    = set of Long Rods
| Materials    = set of Long Rods
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(Also called the Red Rods)<br>
Use of this material teaches the child visual discrimination of length.
Use of this material teaches the child visual discrimination of length.
This activity also prepares the child to use the blue and red [[Number Rods]].
This activity also prepares the child to use the blue and red [[Number Rods]].
== Presentation ==
== Presentation ==
(Long Rods, aka Long Red Rods)
# Invite the child to the lesson.  Unroll a rug.  Show where the work is on the shelf and name the lesson.
# Invite the child to the lesson.  Unroll a rug.  Show where the work is on the shelf and name the lesson.
# Starting with the shortest rod, carry the rods one at a time to the rug.  Place them on the rug in mixed-up order with all of the edges lined up on the left.
# Starting with the shortest rod, carry the rods one at a time to the rug.  Place them on the rug in mixed-up order with all of the edges lined up on the left.
#:[[Image:Long rods 1.JPG|200 px|center]]
#:[[Image:Long rods 1.JPG|240 px|center]]
# Move the longest rod and then the shortest rod to the bottom of the rug.  Point to the longest one and say, "This one is long."  Point the the short one and say, "This one is short."  Then mix the rods back in with the rest.
# Move the longest rod and then the shortest rod to the bottom of the rug.  Point to the longest one and say, "This one is long."  Point the the short one and say, "This one is short."  Then mix the rods back in with the rest.
#:[[Image:Long rods 2.JPG|200 px|center]]
#:[[Image:Long rods 2.JPG|240 px|center]]
# Select the longest rod and place it at the top edge of the rug.  Find the next longest rod and place it just below the longest rod touching it.  
# Select the longest rod and place it at the top edge of the rug.  Find the next longest rod and place it just below the longest rod touching it.  
#:[[Image:Long rods 3.JPG|200 px|center]]
#:[[Image:Long rods 3.JPG|240 px|center]]
# Continue until all of the rods are in order.
# Continue until all of the rods are in order.
#:[[Image:Long rods 4.JPG|200 px|center]]
#:[[Image:Long rods 4.JPG|240 px|center]]
# Clean up: Starting with the longest rod, carry the rods one at a time back to the shelf.  Roll up and put away the rug.
# Clean up: Starting with the longest rod, carry the rods one at a time back to the shelf.  Roll up and put away the rug.


===Video===
===Video===
Segment on Long Rods begins at 28:22.
Segment on Long Rods begins at 28:22.
{{#ev:googlevideo|-1276553600766257368|300}}
{{#widget:YouTube|id=gCJ0vRoE5Ts}}


== Points of Interest ==
== Points of Interest ==
Line 47: Line 47:


===Make Your Own===
===Make Your Own===
Take the opportunity to DIY with your kids (including carfully cutting the rods)<BR> (need to buy 1+2+ ... + 10 = 55 meter long of good quality wood, eg. oak)
[[Category:Make_your_own]]
Take the opportunity to make these with your kids (including carefully cutting the rods).<br> (You'll need to buy 10cm + 20cm + ... + 100cm = 5.5 meters long of good quality wood, eg. oak). The ends should measure about 3x3 cm.<br>(It is possible to use "half-size" rods with the longest rod being 50cm, and the shortest 5cm, with 1.5 x 1.5cm ends. This might be preferable for a homeschool environment with limited space.)


[[File:LongRedRod_MakeYourOwn_VTH.png|300px]]
[[File:LongRedRod_MakeYourOwn_VTH.png|300px]]


===Where to Buy===
===Where to Buy===
<div style="float: left; width: 30%">
[[Category:Where to Buy]]
'''Long Rods'''<br>
Prices and links checked: 23 January 2022
[http://www.adenamontessori.us/details.php?did=1 Adena] $32.65<br>
<div class="buyGrid">
[http://www.montessoriresources.com/Long-Red-Rods-P28C5.aspx Albanesi] $175.00<br>
<div class="buyElement">
[http://www.alisonsmontessori.com/Red_Rods_p/s05.htm Alison's] $45.00<br>
{| class="buytable sortable"
[http://www.bruinsmontessori.com/itemdetails.php?item_id=6 Bruin's] $120.00<br>
|-
[http://www.cabdevmontessori.com/product.php?productid=16814&cat=251&page=1 Cabdev] $136.00<br>
!colspan="2"|Long Rods
[http://www.calibermontessori.com/catalog/item/3528879/3204256.htm Caliber] $29.99<br>
|-
[http://www.montessoribuy.com/cartdetails.asp?id=HTS0002 Creative Learning] $39.95<br>
! Store !! Price
[http://www.montessorimaterials.com/content/red-long-rods E & O] $168.00<br>
|-
[http://grandpas.vstore.ca/product_info.php/cPath/4/products_id/120 Grandpas] $45.00<br>
|[https://www.adenamontessori.com/ius/details.php?did=1 Adena]
[http://shop.hellowood.com/Red-Rods-S21.htm Hello Wood] <span style="font-size:80%">stained red:</span> $169.00,<br><span style="font-size:80%">painted red:</span> $162.00, <span style="font-size:80%">natural finish:</span> $149.00<br>
|$52.99
[http://www.julianagroup.com/sensorial.lasso?page=detail&Category=&SubCategory=Sensorial&NewItem=&Overstock=&Description=&skip=10 Juliana Group] 158.20<br>
|-
[http://www.kidadvance.com/Store/ProductDetails.asp?pid=263&catid=1 Kid Advance] $34.99<br>
|[https://www.affordmontessori.com/index.php/montessori-material/sensorial/red-rods-long-rods.html Affordable Montessori]
[http://www.montessoriconcepts.com/products.php?cat=Sensory Montessori Concepts] $28.00<br>
|$65.00
[http://www.montessoriland.com/site/1270021/product/ID_%201006 Montessori Land] $43.00<br>
|-
[http://www.montessorioutlet.com/cgi-bin/item/510300110/5103/Montessori-Outlet-Long-Red-Rods Montessori Outlet] $39.95<br>
|[https://www.alisonsmontessori.com/Red_Rods_Made_in_Thailand_p/s05.htm Alison's]
[http://www.nienhuis.com/the-red-rods-1-2.html Nienhuis] $165.00<br>
|$49.61
|-
|[https://bruinsmontessori.com/products/sensorial/red-rods.html Bruins]
|$160.00
|-
|[https://usa.montessorimaterials.com/products/red-long-rods E & O]
|$88.20
|-
|[https://shop.hellowood.com/Red-Rods-Stained-Red-S21.htm Hello Wood]<br><span class="comment">stained red</span>
|$192.00
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Long-Red-Rods-p/sen-002.htm IFIT]
|$55.00
|-
|[https://www.kidadvance.com/red-rods.html Kid Advance]
|$55.99
|-
|[https://www.leaderjoyusa.com/long-red-rods.html Leader Joy]
|$58.95
|-
|[https://www.thematerialscompany.com/collections/sensorial/products/red-rods Materials Co. of Boston]
|$105.00
|-
|[https://montessorioutlet.com/authentic-montessori/sensorial/long-red-rods.html Montessori Outlet]
|$58.95
|-
|[https://www.nienhuis.com/us/en/the-red-rods-nienhuis-montessori-usa/product/4302/ Nienhuis]
|$169.50
|-
|[https://www.thinkamajigs.com/long-red-rods/ Thinkamajigs]
|$64.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Stand
|-
! Store !! Price
|-
|[https://www.adenamontessori.com/ius/details.php?did=905 Adena]
|$32.99
|-
|[https://www.affordmontessori.com/index.php/montessori-material/sensorial/stand-for-red-rods.html Affordable Montessori]
|$42.00
|-
|[https://www.alisonsmontessori.com/Stand_for_Red_Rods_and_Number_Rods_p/f03.htm Alison's]
|$32.41
|-
|[https://bruinsmontessori.com/products/sensorial/stand-for-red-rods-number-rods-green-rods.html Bruins]
|$60.00
|-
|[https://usa.montessorimaterials.com/products/stand-rednumber-rods E & O]
|$42.30
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Stand-for-Red-Numerical-Rods-p/sen-004.htm IFIT]
|$30.00
|-
|[https://www.thematerialscompany.com/collections/sensorial/products/stand-hold-red-rods-or-number-rods Materials Co. of Boston]
|$49.00
|-
|[https://montessorioutlet.com/authentic-montessori/sensorial/stands-for-long-red-rods-numerical-rods.html Montessori Outlet]
|$35.95
|-
|[https://www.thinkamajigs.com/rods-rack/ Thinkamajigs]
|$42.95
|}
</div>
</div>


</div><div style="float: left; width: 30%">
== Further Reading ==
'''Stand'''<br>
*[[Basic Montessori: Learning Activities for Under-fives]] by David Gettman, pages 78-80
[http://www.adenamontessori.us/details.php?did=905 Adena] $23.03<br>
[http://www.alisonsmontessori.com/Stand_for_Red_Rods_p/f03.htm Alison's] $27.99<br>
[http://www.cabdevmontessori.com/product.php?productid=16977&cat=251&page=2 Cabdev] $40.00<br>
[http://www.montessoribuy.com/cartdetails.asp?id=HTS0003 Creative Learning] $24.95<br>
[http://www.kidadvance.com/Store/ProductDetails.asp?Pid=2 Kid Advance] $24.99<br>
[http://www.montessorioutlet.com/cgi-bin/item/510300120/Montessori-Outlet-Stand-for-Long-Red-Rods Montessori Outlet] $22.95<br>


</div>
 
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|description=The Long Rods, or Red Rods, are a material to teach children to differentiate between objects of different lengths.
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Latest revision as of 20:21, 26 January 2022

Long Rods
Sensorial - Visual Discrimination of Size
Red Rods.jpg
LevelPre-Primary
Primary
Age2.5 - 3.5
PrerequisitesPink Tower
Broad Stair
Materialsset of Long Rods

(Also called the Red Rods)
Use of this material teaches the child visual discrimination of length. This activity also prepares the child to use the blue and red Number Rods.

Presentation

  1. Invite the child to the lesson. Unroll a rug. Show where the work is on the shelf and name the lesson.
  2. Starting with the shortest rod, carry the rods one at a time to the rug. Place them on the rug in mixed-up order with all of the edges lined up on the left.
    Long rods 1.JPG
  3. Move the longest rod and then the shortest rod to the bottom of the rug. Point to the longest one and say, "This one is long." Point the the short one and say, "This one is short." Then mix the rods back in with the rest.
    Long rods 2.JPG
  4. Select the longest rod and place it at the top edge of the rug. Find the next longest rod and place it just below the longest rod touching it.
    Long rods 3.JPG
  5. Continue until all of the rods are in order.
    Long rods 4.JPG
  6. Clean up: Starting with the longest rod, carry the rods one at a time back to the shelf. Roll up and put away the rug.

Video

Segment on Long Rods begins at 28:22.

Points of Interest

Control of Error

Variations and Extensions

Long Rods extension Rainbow Mama.jpg
Source: Adventures of a Rainbow Mama

Long Red Rod Snail pattern on a printed card and the execution (Counter Clock)
LongRedRodSnail 400x400.jpgLongRedRod Snail.jpg

Language

Introduces the vocabulary:
short, shorter, shortest
long, longer, longest

Material

This material consists of ten wooden rods, usually painted red. The shortest rod is 10cm in length, they each increase in length by 10cm up to the longest which is 100cm long.

Make Your Own

Take the opportunity to make these with your kids (including carefully cutting the rods).
(You'll need to buy 10cm + 20cm + ... + 100cm = 5.5 meters long of good quality wood, eg. oak). The ends should measure about 3x3 cm.
(It is possible to use "half-size" rods with the longest rod being 50cm, and the shortest 5cm, with 1.5 x 1.5cm ends. This might be preferable for a homeschool environment with limited space.)

LongRedRod MakeYourOwn VTH.png

Where to Buy

Prices and links checked: 23 January 2022

Long Rods
Store Price
Adena $52.99
Affordable Montessori $65.00
Alison's $49.61
Bruins $160.00
E & O $88.20
Hello Wood
stained red
$192.00
IFIT $55.00
Kid Advance $55.99
Leader Joy $58.95
Materials Co. of Boston $105.00
Montessori Outlet $58.95
Nienhuis $169.50
Thinkamajigs $64.95
Stand
Store Price
Adena $32.99
Affordable Montessori $42.00
Alison's $32.41
Bruins $60.00
E & O $42.30
IFIT $30.00
Materials Co. of Boston $49.00
Montessori Outlet $35.95
Thinkamajigs $42.95

Further Reading